The boss fight in Trials of Archons is bloody tedious.
When I went toe-to-toe with the boss, I got all 0s or something, only later to find out that celestial had - to a lesser degree - Xy'zzy's DR.
I had to pull out an incomplete Green-steel longsword from my bank to even get damage numbers on her.
Another thing: the quest seems bugged, resetting every-single time you exist.
P.S. This was on Epic Hard, EE owned my face with the first mobs despite the fact my toon had about 150 PRR.